180278000

素因数分解:

$2^4\times 5^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:272

約数の個数: 160

約数和(自身を含む): 507586560

約数和(自身を除く): 327308560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 79, 80, 100, 112, 125, 140, 158, 163, 175, 200, 250, 280, 316, 326, 350, 395, 400, 500, 553, 560, 632, 652, 700, 790, 815, 875, 1000, 1106, 1141, 1264, 1304, 1400, 1580, 1630, 1750, 1975, 2000, 2212, 2282, 2608, 2765, 2800, 3160, 3260, 3500, 3950, 4075, 4424, 4564, 5530, 5705, 6320, 6520, 7000, 7900, 8150, 8848, 9128, 9875, 11060, 11410, 12877, 13040, 13825, 14000, 15800, 16300, 18256, 19750, 20375, 22120, 22820, 25754, 27650, 28525, 31600, 32600, 39500, 40750, 44240, 45640, 51508, 55300, 57050, 64385, 65200, 69125, 79000, 81500, 90139, 91280, 103016, 110600, 114100, 128770, 138250, 142625, 158000, 163000, 180278, 206032, 221200, 228200, 257540, 276500, 285250, 321925, 326000, 360556, 450695, 456400, 515080, 553000, 570500, 643850, 721112, 901390, 1030160, 1106000, 1141000, 1287700, 1442224, 1609625, 1802780, 2253475, 2282000, 2575400, 3219250, 3605560, 4506950, 5150800, 6438500, 7211120, 9013900, 11267375, 12877000, 18027800, 22534750, 25754000, 36055600, 45069500, 90139000, 180278000]

約数ペア:

[(1, 180278000), (2, 90139000), (4, 45069500), (5, 36055600), (7, 25754000), (8, 22534750), (10, 18027800), (14, 12877000), (16, 11267375), (20, 9013900), (25, 7211120), (28, 6438500), (35, 5150800), (40, 4506950), (50, 3605560), (56, 3219250), (70, 2575400), (79, 2282000), (80, 2253475), (100, 1802780), (112, 1609625), (125, 1442224), (140, 1287700), (158, 1141000), (163, 1106000), (175, 1030160), (200, 901390), (250, 721112), (280, 643850), (316, 570500), (326, 553000), (350, 515080), (395, 456400), (400, 450695), (500, 360556), (553, 326000), (560, 321925), (632, 285250), (652, 276500), (700, 257540), (790, 228200), (815, 221200), (875, 206032), (1000, 180278), (1106, 163000), (1141, 158000), (1264, 142625), (1304, 138250), (1400, 128770), (1580, 114100), (1630, 110600), (1750, 103016), (1975, 91280), (2000, 90139), (2212, 81500), (2282, 79000), (2608, 69125), (2765, 65200), (2800, 64385), (3160, 57050), (3260, 55300), (3500, 51508), (3950, 45640), (4075, 44240), (4424, 40750), (4564, 39500), (5530, 32600), (5705, 31600), (6320, 28525), (6520, 27650), (7000, 25754), (7900, 22820), (8150, 22120), (8848, 20375), (9128, 19750), (9875, 18256), (11060, 16300), (11410, 15800), (12877, 14000), (13040, 13825)]